Any device that makes work easier is called a.

The greater the difference in electronegativity between two covalently bonded atoms

An astronomical unit (AU) is equal to which of the following? A. the mean distance between Earth and Alpha Centauri B. the length of the semimajor axis of our solar system C. the mean radius of all observable spiral galaxies D.

Find the magnitude of the gravitational force (in N) between a planet with mass 6.00 ✕ 1024 kg and its moon, with mass 2.65 ✕ 1022 kg, if the average distance between their centers is 2.90 ✕ 108 m.

The wavelength of a wave is the distance between

A 100 g ball moving to the right at 4.0 m/s collides head-on with a 200 g ball that is moving to the left at 3.0 m/s.

What action happens if the moon spins on its axis like a top

A teacher has asked four students to state a scientific theory. Which student is correct?

36 of 50 Constants A 89.0-kg refrigerator sits on the floor. The coefficient of static friction between the refrigerator and the floor is 0.60. What is the minimum force that one needs to exert on the refrigerator to start the refrigerator sliding?

Does high pressure rise and low pressure sink

A unit vector is used in the symbolic representation of the electric field. What physical units does the unit vector have? meters. The unit vector has no units. coulombs. The units depend on how it is used.